“Fifteen years”

HENRY: Sorry I’ve been monopolising Lane all night.RORY: Oh no, that’s okay. I’ve had her for fifteen years. I’m actually a little sick of her.

That would mean that Rory and Lane have known each other since they were one year old, but Rory didn’t move to Stars Hollow until she was nearly two. This might show again that the original intention was for Lorelai and Rory to move to Stars Hollow in 1985, when Rory was only a few months old.